Piling.



IIIIITEI) STATES PATENT QFFIQE.

WILLIAM NEIL-SON, 0F PITTSBURGH, PENNSYLVANIA.

FILING.

Application filed January 18, 1912, Serial No. 671,870. Renewed July 9, 1913.

To all whom it may concern:

Be it known that I, WVILLIAM NEILSON, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Piling, of which the following is a. specification.

My invention consists of an improvement in metal piling, of the class wherein a series of rolled metal piles are connected to gether at their edges by means of co-acting holding port-ions, capable of relative longitudial movement,and providing for lateral deflection of the several piles of a series when connected.

The particular object of the invention is to provide a construction which may be rolled from a suitable blank to provide, along each edge of the pile, specially formed hook terminals adapted to lnterfit and coact with a correspondingly formed terminal of an adjacent pile, whereby to provide at any position which the piles may assume with relation to each other, a strong, tight joint, capable of resisting the various strains, and whereby, at varying positions, different portions of the inter-engaging terminals will be maintained in binding contact.

A further object is to so construct the terminals that the interengaging hold, one with the other, will be increased in proportion to the strain.

An especial object of the invention is to provide a construction in which the main interlocking member of the pile is reinforced to resist bending or breaking strains, by a material lateral enlargement, and to rovide a companion integral co-acting hook element, adapted to embrace and make engagement with the main interlocking member of a connected adjacent pile.

In various forms of rolled metal piling heretofore constructed and designed, employing interengaging flanged sections, there is more or less tendency to open up the joint under strain, due to the spreading or wedging action of the parts.

In my present invention, which is of the type of piling shown in my prior Patents, 912021 and 1003778, I form the pile in the fewest number of rolling operations, from an original ingot or billet form, utilizing th metal and so distributing and shapin Specification of Letters Patent.

Patented Aug. 19,1913.

Serial No. 778,178.

it, with relatio-n'to the main body portion or web of the section, as to best secure the objects in view.

In the drawings accompanying the specification, Figure 1 is a cross sectional view, partly broken away, of a pile made in accordance with my invention. Fig. 2 is a similar view, showing the edges of adjacent piles in interlocked position for a straight wall arrangement. Fig. 3 is a similar view, showing one of the piles deflected from the plane of the other. Fig. 4; is a view similar to Fig. 2, showing a modified construction.

It will be understood that the several sections of piling, shown in cross sectional views in the drawings, are of the desired length for use in the usual manner of using such devices, by driving one after the other,

in interengaging relation, to form a con tinuous series. Each pile consists of a longitudinal web portion 2 having boundary edges arranged to telescopically interfit and co -act with the edges of adjoining piles.

In the construction shown in Figs. 1, 2 and 3 the web 2 is provided at its opposite edge portions with a main lateral hook member 3 at one side and a hook-embracing member 4 at the other side. The hook member 3 is bent around to provide the hook terminal 5 having an inner end 6, rounded as shown, and an inner face 7 preferably coincident with the longitudinal center a, a, of the web 2.

The main hook member 3 is of generally tapering form in cross section and of substantial dimensions adjacent to the web 2, but having a bulging enlargement 8 extending materially outward beyond the general curving and tapering exterior of the hook, as indicated in dotted lines at 3, said enlargement or boss occupying a position about midway between the uncture of member 3 with the web and the terminal 5. Said enlargement is for the purpose of reinforcing the main hook at the point of greatest strain in action whereby to reinforce the pile against bending or breaking strains. A further material advantage is that a projecting rounded boss is provided for engagement of the inner face of the embracing member 4, to insure good binding and sealing contact at whatever positions the separate piles may assume to each other, relatively.

The book member, as thus formed, is somewhat bulbous in cross section, and provides the generally sen'ii-circular interior cavity 9 for receiving the hook terminal 5 of a co-acting pile. Said hook terminal 5 is abruptly cornered and rounded as indicated at 10, and adapted, in varying positions, to make holding engagement with the corresponding faces of the coacting hook 10 of the companion pile. The extreme terminal of the hook 5, being rounded as stated, and also interiorly rounded as indicated at 11, provides for snug interfitting engagement with the interfitting hook terminal of such companion pile.

The embracing outer member 4: 1s generally horn shaped in cross section, extending laterally in tapered formation from the web 2, abruptly deflected as at 12, and provided with a tapering terminal 13 at approxi: mately right angles to the member 4. It is so designed as to embrace the outer face of hook 3 and to engage the boss enlargement- 8 thereof atthe varying positions the pile may assume. lVhen two co-acting piles are thus interlocked in the manner shown, their engaging faces, including the rounded bosses 3, provide a tight joint, somewhat wedge-like in its nature, whereby pulling 01f buckling strains on the piles tending to: separate them, will serve to bind the conj tacting faces more closely together.. The reinforcing enlargements 8, while greatlyl stiffening the main hook members 3, also relieve the embracing member 4 from spreading or opening strains, thereby tending to maintain the parts in their original operative positions.

In Fig. 4 I have shown a modified con- 40 struction employing only the hook member 3', constructed in all respectssimilar to the hook member 3 just described, but eliminating the companion embracing hook t.

In such form the interengaging holding ac- :tion of the main hook portions operates in the same general manner as above described, the parts being indicated by the same numerals, primed. Such form may be utilizedwithout the embracing member 4 with good results,

where strains can be taken care of by the main hook portions as reinforced by. the'boss extensions 8.

It will be understood that the piles may be made of any suitable weight or dimen- 5 sions, and that the parts may be designed to suit varying conditions of use within the province of the designing engineer, but thatall such changes are to be considered as within the scope of the following claims.

hat I claim is:

1. A rolled metal pile comprising a web portion and an integral laterally curved hook portion extending beyond the plane of the web and having a projecting rounded 5 reinforcing boss, said hook portion being rounded backwardly into the plane of the web and terminating in a hook terminal, and said boss being materially thicker than the adjacent parts of the hook portion connecting it with the web and said hook terminal 1 respectively, substantially as set forth.

2. A rolled metal pile comprising a web portion and an integral laterally curved hook portion extending beyond the plane of the web and having a projecting rounded reinforcing boss,-said hook portion being rounded backwardly into the plane of the web and terminating in. a hook terminal having a flat inner face coinciding with a plane extending centrally through the web of the pile, and said boss beingmaterially thicker than the adjacent parts of the hook portion connecting it with the web and said hook terminal respectively, substantially as set forth.

3. A rolled metal pile comprising a web portion and opposite endmost integral laterally curved hook portions extending beyond the plane ofthe web and each havinga projecting. rounded reinforcing boss, said hook portions being rounded backwardly into the plane of the web and terminating iinahook terminals, the boss of said-hook portions being materially thicker than the adjacent parts of the hook portion connecting itwith the web and said hook terminal respectively,

substantially as set forth.

At. A rolled metal pile comprising a web 1) o-rtionand opposite endmost integral laterally curved hook portions extending beyond the plane of the web and each having a projecting rounded boss, said hook portions being rounded backwardly intothe; plane of the weband terminating in hook terminals each having afiat inner face coinciding with a plane extending centrally through the web of the pile, the boss of said. hook portions being materially' thicker than the adjacent parts of the hook portion connecting it with the web and said hook terminal respectively, substantially asset forth.

5. A rolled metal pilehaving along its edge an integral laterally curved hook :portion extending laterally beyond the web and provided with a. projecting rounded boss and a backwardly turned hook terminal forming a receiving recess for the corresponding hook of a covacting pile, and-an outer embracing,portion-adapted to engage the laterally curved projecting portion of a similar co-acting pile, said boss being materially thicker than the adjacent parts of the hook portion connectingit with the :web; and said hook terminal: respectively, substantially as set forth.

= 6. A rolled metal pile having along its edge an integral laterally curved connecting hook portion extendinglaterallybeyond the web and providedwitha projecting rounded boss and a backward-1y turned terminal l11001 forming a receiving recess for the corresponding hook of a co-acting pile, and an outer embracing portion adapted to engage the projecting rounded boss of the laterally curved connecting hook portion of a similar co-acting pile, said boss being materially thicker than the adjacent parts of the hook portion connecting it with the web and said WILLIAM NEILSON. Witnesses:

C. M. CLARKE,

FREDK STAUB.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

